The 1GB 204-Pin 1600 MHz SO-DIMM DDR3L RAM Module from QNAP is designed to run at 1600 MHz frequency. The 204-pin module is compatible with the TS-x51, 451U, x53, x53U, and TVS-x63 series.
Applied Models:
TS-x51A, TS-251, TS-451, TS-651, TS-851, TS-451U, TS-253 Pro, TS-463 Pro, TS-653 Pro, TS-853 Pro